Finding the Fourth Proportional to 15,196.19, 20,970.77 and 8,481.82

Step by Step Solution

1. Step 1: Write the proportion equation
   15,196.19 : 20,970.77 = 8,481.82 : x
2. Step 2: Convert to fraction form
   15,196.19/20,970.77 = 8,481.82/x
3. Step 3: Cross multiply
   15,196.19x = 20,970.77 × 8,481.82
4. Step 4: Simplify right side
   15,196.19x = 177,870,185.05
5. Step 5: Solve for x
   x = 177,870,185.05/15,196.19
6. Step 6: Final answer
   x = 11,704.92